Smoke consumer for locomotives



Jan. 31, 1950 M. J. PEKICH SMOKE CONSUMER FOR LOCOMOTIVES Filed Sept.28, 1946 invention relates locomotives.

Patented Jan. 31, 1950 r 2,495,864 H v SMOKEGONSUMER FQRLQCOMOTIVESMichaela.rekimnr kiymnqy. I Application September 28,1946,.ser'iaiNd-1o0n-04 .1' Cl aun.

toasmoke consumer for .It is anobject of the present invention;togproyide asmoke consumer forlocomotives which will drawcthe smokebefore it passes to thezstack and return the same to the fire box forreburning.

It is another object of the invention to provide a device which servesto supply cold air to the fire box and wherein the smoke will besupplied with sufficient oxygen to insure its ready burning whendelivered to the fire box.

It is another object of the invention to provide a simple andinexpensive smoke consumer for steam locomotives.

According to the invention, the smoke compartment at the front of thelocomotive is provided with a pipe for receiving smoke prior to its exitthrough the regular stack. Forced into this pipe is compressed air fordrawing the smoke into the pipe and from this pipe the smoke isdelivered to a chamber below the fire box to be forced upwardly throughthe fuel grate for reburning. To slow down the fire, the smoke filledair can be by-passed through a valve-controlled pipe to the top of thefire and away from the chamber below the fire grate. In the front wallof the locomotive there is provided a shuttercontrolled cold air openingby which cold air for further mixing of air with the smoke can be drawnalong with the smoke for delivery to the fire box.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawings, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosureFig. 1 is a longitudinal cross-sectional view of a locomotive showingthe fire box, fire tubes, and front end compartment housing the deviceembodying the features of the present invention.

Fig. 2 is a front end view of the locomotive with a portion of the frontplate broken away to show further details of the smoke consuming device.

Referring now to the figures, l represents a portion of a locomotivehaving a fire box II, a boiler I 2 with fire tubes l3 extendingtherethrough for delivery to a smoke compartment I4 at the forward endof the locomotive. The smoke compartment I4 has a front wall I5 and astack l6 extending out of the top thereof.

Extending upwardly from the bottom of the compartment 14 is a pipe I!into which excess smoke can be drawn. To effect the movement of thesmoke into the pipe I! there is a pipe l8 (cure-=50) leadingfromalcompressed air .chamber l9. At the @lower endof .the,p ipe.thereisan internally tapered coupling III from which leads a returnjpipefz2.forthesmoker Thepipe 22empties into an air. ttight, compartment23 under a ,fire grate '24 in the fire box ll carrying a fire pile 25.Fuel is delivered to the fire box II through a door opening 26 having aclosure 21. The mixture of smoke and air will accordingly be forcedupwardly through the fire grate and the smoke will be further consumedor burned while at the same time fire pile will be supplied with air forfurther combustion.

When it is desired to slow down the fire a damper 28, in a pipe 29leading from the chamber 23 and connected with the fire box above thegrate, is opened whereby to by-pass the smoke and air mixture to the topof the fire pile.

In the front wall [5, is a large opening 3| having shutters 32 extendingthereacross and adapted to be operated by a bell crank 33 pivoted on therear of the front wall above the opening and connected with a controlrod 34 which may extend rearwardly to the engineers compartment locatedto the rear of the fire box. As the shutters are opened cold air may bedrawn in through a pipe 35 leading to the vertically-extending pipe l1.Thus with the present device if maximum combustion is desired added aircan be drawn by the compressed device 19 along with the smoke.

While I have illustrated and described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to theprecise constructions herein disclosed and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claim.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent is:

In a locomotive having a fire box, a grate in said firebox, andincluding means forming a closed chamber beneath said firebox and asmoke compartment forward of the locomotive with fire tubes connectingsaid fire box to said smoke compartment and a pipe connected at one endto the closed chamber and having its other end extended verticallyupward into the smoke chamber for conveying smoke from the smoke chamberto the closed chamber for reburning in the fire box, a source ofcompressed air in the smoke compartment, a second pipe of a diametersmaller than the first pipe connected at one end to said source ofcompressed air and having its other end extended into the first pipe atone side thereof, said second pipe having its open end within the firstpipe directed away from the open end of the first pipe so that air underpressure entering the first pipe and passing therethrough to 3 theclosed chamber will cause a partial vacuum within the open end of thefirst pipe in the smoke chamber to cause smoke to enter the first pipeand be carried to the closed chamber by the compressed air, and a thirdpipe within the smoke chamber and having one end surrounding an openingformed in the front wall of the smoke chamber so that cold outside airwill enter said third pipe as the locomotive moves in a forwarddirection, said third pipe having itsother end reduced to a diameterless than the diameter of the first pipe and extended into the open topend of the first pipe within the smoke chamber, said third ipeterminating within the first pipe above the point where said second pipeenters the side of the first pipe causing cold outside air to be carriedinto the first pipe-to mix with the smoke which enters the first pipe toforms. combustible mixture, a fourth pipe, said fourth pipe having oneof its ends connected to said chamber,.the

other end of said fourth pipe entering said fire box above said grate,and a valve in said fourth pipe for controlling the amount of smoke tobe admitted to saidfire box above said grate.

MICHAEL J. PEKICH.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 264,905 Spear et a1 Sept. 26,1882 635,878 Stapp Oct. 31, 1899 785,035 Dundon Mar. 14, 1905 843,848Schleyder Feb. 12, 1907 992,123 Fournia May 9, 1911 1,012,484 Wait Dec.19, 1911 1,990,086

Nelson -1 Feb. 5, 1935

